latticebondplasticity.h

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/*
 *
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
#ifndef latticebondplasticity_h
#define latticebondplasticity_h
 
#include "latticelinearelastic.h"
#include "latticematstatus.h"


#define _IFT_LatticeBondPlasticity_Name "latticebondplast"
#define _IFT_LatticeBondPlasticity_tol "tol"
#define _IFT_LatticeBondPlasticity_iter "iter"
#define _IFT_LatticeBondPlasticity_sub "sub"
#define _IFT_LatticeBondPlasticity_fc "fc"
#define _IFT_LatticeBondPlasticity_angle1 "angle1"
#define _IFT_LatticeBondPlasticity_ef "ef"
 
namespace oofem {
class LatticeBondPlasticityStatus : public LatticeMaterialStatus
{
protected:
 
    double kappaP = 0.;
    double tempKappaP = 0.;
 
    int surfaceValue = 0.;
 
public:

    LatticeBondPlasticityStatus(int n, Domain *d, GaussPoint *g);

    double giveKappaP() const { return kappaP; }
    double giveTempKappaP() const { return tempKappaP; }
    void setTempKappaP(double newKappa) { tempKappaP = newKappa; }
 
    void setSurfaceValue(int val)
    {
        surfaceValue = val;
    }
 
    int giveSurfaceValue()
    {
        return surfaceValue;
    }
 
 
    void printOutputAt(FILE *file, TimeStep *tStep) const override;
 
    const char *giveClassName() const override { return "LatticeBondPlasticityStatus"; }
 
    void initTempStatus() override;
 
    void updateYourself(TimeStep *) override;
 
 
    void saveContext(DataStream &stream, ContextMode mode) override;
 
    void restoreContext(DataStream &stream, ContextMode mode) override;
};
 
class LatticeBondPlasticity : public LatticeLinearElastic
{
protected:
 
    enum LatticeBondPlasticity_SurfaceType { ST_Unknown, ST_Vertex, ST_Shear, ST_Compression };
 
    enum LatticeBondPlasticity_ReturnResult { RR_NotConverged, RR_Converged, RR_Elastic };
 
    int giveIPValue(FloatArray &answer, GaussPoint *gp, InternalStateType type, TimeStep *atTime) override;

    double fc = 0.;

    double frictionAngleOne = 0.;
    double frictionAngleTwo = 0.;
 
    double flowAngle = 0.;

    double yieldTol = 0.;

    int newtonIter = 0;

    int numberOfSubIncrements = 0;
 
    //parameter in hardening law
    double ef = 0.;
 
public:

    LatticeBondPlasticity(int n, Domain *d);
 
    const char *giveInputRecordName() const override { return _IFT_LatticeBondPlasticity_Name; }
    const char *giveClassName() const override { return "LatticeBondPlasticity"; }
 
    double computeHardening(double kappa) const;
 
    double computeDHardeningDKappa(double kappa) const;
 
    double computeParamA(const double kappa) const;
    double computeDParamADKappa(const double kappa) const;
 
    double computeShift(const double kappa) const;
    double computeDShiftDKappa(const double kappa) const;
 
 
    void initializeFrom(InputRecord &ir) override;
 
    bool isCharacteristicMtrxSymmetric(MatResponseMode rMode) const override { return false; }
 
 
 
    bool checkForVertexCase(FloatArrayF< 3 > &stress, GaussPoint *gp) const;
 
    void performVertexReturn(FloatArrayF< 3 > &stress, GaussPoint *gp) const;
 
    double computeTransition(const double kappa, GaussPoint *gp) const;
 
    bool hasMaterialModeCapability(MaterialMode mode) const override;
 
 
    /* Compute the A matrix used for closest point return
     */
    FloatMatrixF< 3, 3 >computeAMatrix(const FloatArrayF< 3 > &sigma,
                                       const double tempKappa,
                                       const double deltaLambda,
                                       int transitionFlag,
                                       GaussPoint *gp) const;
 
    FloatMatrixF< 4, 4 >computeJacobian(const FloatArrayF< 3 > &sigma,
                                        const double tempKappa,
                                        const double deltaLambda,
                                        int transitionFlag,
                                        GaussPoint *gp) const;
 
    FloatArrayF< 3 >computeFVector(const FloatArrayF< 3 > &sigma,
                                   const double kappa,
                                   int transitionFlag,
                                   GaussPoint *gp) const;
    FloatArrayF< 3 >computeMVector(const FloatArrayF< 3 > &sigma,
                                   const double kappa,
                                   int transitionFlag,
                                   GaussPoint *gp) const;
    FloatMatrixF< 3, 3 >computeDMMatrix(const FloatArrayF< 3 > &sigma,
                                        const double deltaLambda,
                                        int transitionFlag,
                                        GaussPoint *gp) const;
 
    FloatArrayF< 6 >giveLatticeStress3d(const FloatArrayF< 6 > &jump, GaussPoint *gp, TimeStep *tStep) override;
 
 
    FloatArrayF< 3 >performPlasticityReturn(GaussPoint *gp, const FloatArrayF< 3 > &totalStrain, TimeStep *) const;
 
    double performRegularReturn(FloatArrayF< 3 > &stress,
                                LatticeBondPlasticity_ReturnResult &returnResult,
                                LatticeBondPlasticity_SurfaceType &surfaceType,
                                double yieldValue,
                                int transitionFlag,
                                GaussPoint *gp) const;
 
    double computeYieldValue(const FloatArrayF< 3 > &sigma,
                             const double tempKappa,
                             int transitionFlag,
                             GaussPoint *gp) const;
 
 
    std::unique_ptr<MaterialStatus> CreateStatus(GaussPoint *gp) const override;
 
    virtual FloatArrayF< 6 >giveReducedStrain(GaussPoint *gp, TimeStep *tStep) const;
};
} // end namespace oofem
#endif